CN105070848A - Display panel, organic light emitting device and preparation method of organic light emitting device - Google Patents
Display panel, organic light emitting device and preparation method of organic light emitting device Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 230000005525 hole transport Effects 0.000 claims abstract description 16
- 229920002521 macromolecule Polymers 0.000 claims description 41
- 230000005540 biological transmission Effects 0.000 claims description 39
- 238000002156 mixing Methods 0.000 claims description 35
- 239000000758 substrate Substances 0.000 claims description 35
- 239000000463 material Substances 0.000 claims description 17
- 238000000034 method Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 11
- 229910044991 metal oxide Inorganic materials 0.000 claims description 10
- 229910000314 transition metal oxide Inorganic materials 0.000 claims description 9
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 238000010276 construction Methods 0.000 claims description 5
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- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 239000002041 carbon nanotube Substances 0.000 claims description 3
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- 238000004528 spin coating Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 2
- 229910021389 graphene Inorganic materials 0.000 claims description 2
- 238000007641 inkjet printing Methods 0.000 claims description 2
- 229910052752 metalloid Inorganic materials 0.000 claims description 2
- 150000002738 metalloids Chemical class 0.000 claims description 2
- 238000010129 solution processing Methods 0.000 claims description 2
- 150000002736 metal compounds Chemical class 0.000 claims 2
- 238000005401 electroluminescence Methods 0.000 claims 1
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- -1 poly(ethylene oxide) Polymers 0.000 description 4
- 239000003960 organic solvent Substances 0.000 description 3
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- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
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- 229920003227 poly(N-vinyl carbazole) Polymers 0.000 description 2
- MCJGNVYPOGVAJF-UHFFFAOYSA-N quinolin-8-ol Chemical compound C1=CN=C2C(O)=CC=CC2=C1 MCJGNVYPOGVAJF-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
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- RICKKZXCGCSLIU-UHFFFAOYSA-N 2-[2-[carboxymethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]ethyl-[[3-hydroxy-5-(hydroxymethyl)-2-methylpyridin-4-yl]methyl]amino]acetic acid Chemical compound CC1=NC=C(CO)C(CN(CCN(CC(O)=O)CC=2C(=C(C)N=CC=2CO)O)CC(O)=O)=C1O RICKKZXCGCSLIU-UHFFFAOYSA-N 0.000 description 1
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- 239000012530 fluid Substances 0.000 description 1
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- 238000004770 highest occupied molecular orbital Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920002098 polyfluorene Polymers 0.000 description 1
- 239000010453 quartz Substances 0.000 description 1
- 230000006798 recombination Effects 0.000 description 1
- 238000005215 recombination Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 150000003384 small molecules Chemical class 0.000 description 1
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- 229910052723 transition metal Inorganic materials 0.000 description 1
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/20—Carbon compounds, e.g. carbon nanotubes or fullerenes
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/20—Carbon compounds, e.g. carbon nanotubes or fullerenes
- H10K85/221—Carbon nanotubes
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
- H10K50/80—Constructional details
- H10K50/84—Passivation; Containers; Encapsulations
- H10K50/842—Containers
- H10K50/8426—Peripheral sealing arrangements, e.g. adhesives, sealants
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/87—Passivation; Containers; Encapsulations
- H10K59/871—Self-supporting sealing arrangements
- H10K59/8722—Peripheral sealing arrangements, e.g. adhesives, sealants
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- H10K71/00—Manufacture or treatment specially adapted for the organic devices covered by this subclass
- H10K71/10—Deposition of organic active material
- H10K71/12—Deposition of organic active material using liquid deposition, e.g. spin coating
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- H10K2101/30—Highest occupied molecular orbital [HOMO], lowest unoccupied molecular orbital [LUMO] or Fermi energy values
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- H10K2102/301—Details of OLEDs
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- H10K50/16—Electron transporting layers
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Abstract
The invention discloses a display panel, a polymer organic light emitting device and a preparation method of the polymer organic light emitting device. The polymer organic light emitting device includes an organic light emitting layer with a first surface and a second surface which are opposite to each other, a hole transport part which is stacked on the first surface of the organic light emitting layer, and an electron transport part which is stacked on the second surface of the organic light emitting layer, wherein the electron transport part comprises a mixed nano film layer. The polymer organic light emitting device of the invention is advantageous in improved current efficiency.
Description
Technical field
The disclosure relates to Display Technique field, is specifically related to the preparation method of a kind of macromolecule organic luminescent device and this macromolecule organic luminescent device and comprises the display floater of this macromolecule organic luminescent device.
Background technology
Along with the develop rapidly of science and technology, the requirement of people to display floater also improves increasingly, make display floater to gentlier, thinner, more power saving future development, therefore create organic LED display panel.Compared with traditional display panels, organic LED display panel be self-luminous display, do not need the backlight module that energy consumption is larger, thus can gentlier, thinner, more power saving, thus obtain and pay close attention to more and more widely.
According to the difference of luminous organic material used, the organic luminescent device in organic LED display panel can be divided into Small molecular organic luminescent device and macromolecule organic luminescent device (PolymerLight-emittingDiode, PLED).Compared to, the preparation of Small molecular organic luminescent device needs the vacuum thermal evaporation equipment of high cost, and the application be not easy in large-area displays panel, the wet methods such as the solution spin coating adopted in the preparation of macromolecule organic luminescent device, a painting are then more easy, save equipment and process cost, and be convenient to the application in large-area displays panel.
Rational device architecture has vital effect for aspects such as improving the brightness of macromolecule organic luminescent device, current efficiency and stability.Shown in figure 1, be a kind of in prior art structural representation of macromolecule organic luminescent device, it mainly comprises the stacked hole transport portion 1 ' of order, organic luminous layer 2 ' and electric transmission portion 3 '.Its principle of luminosity is produced exciton by hole transport portion 1 injected holes with by electric transmission portion 3 ' injected electrons compound in organic luminous layer 2 ' thus realize luminescence.Wherein, hole transport portion 1 ' and electric transmission portion 3 ' are mainly used in the imbalance of solution two kinds of carrier injections, hole transport portion 1 ' can comprise anode 10 ', hole injection layer (HIL) 11 ' and hole transmission layer (HTL) 12 ', electric transmission portion can comprise negative electrode 30 ' and electron transfer layer (ETL) 31 ', in some macromolecule organic luminescent device, electric transmission portion can also comprise electron injecting layer (EIL) (not shown).
But, generally speaking, macromolecule luminous organic material is all inclined hole-transporting type macromolecular material, and in macromolecule organic luminescent device the cavity transmission ability of transport part, hole much larger than the electron transport ability in electric transmission portion, thus when macromolecule organic luminescent device starts, hole and electronics will near formation exciton recombination zone, electric transmission portion, exciton by the interface in electric transmission portion and organic luminous layer or in electric transmission portion de excitation send out, make macromolecule organic luminescent device spectral red shift.
Summary of the invention
Object of the present disclosure is to provide the preparation method of a kind of macromolecule organic luminescent device and this macromolecule organic luminescent device and comprises the display floater of this macromolecule organic luminescent device, for overcoming the one or more problems caused due to the restriction of correlation technique and defect at least to a certain extent.
Other characteristics of the present disclosure and advantage become obvious by by detailed description below, or the acquistion partially by practice of the present disclosure.
According to first aspect of the present disclosure, a kind of macromolecule organic luminescent device is provided, comprises:
Organic luminous layer, has relative first surface and second;
Hole transport portion, is stacked at described organic luminous layer first surface;
Electric transmission portion, is stacked at described organic luminous layer second, and described electric transmission portion comprises mixing nanometer rete.
According to second aspect of the present disclosure, a kind of macromolecule organic luminescent device preparation method is provided, comprises:
Form a hole transport portion, for providing holoe carrier;
An organic luminous layer is formed on described hole transport portion; And,
On described organic luminous layer, form an electric transmission portion, described electric transmission portion comprises mixing nanometer rete.
According to the third aspect of the present disclosure, a kind of display floater is provided, comprises:
One first substrate;
One second substrate, is oppositely arranged with described first substrate;
One any one macromolecule organic luminescent device above-mentioned, is arranged between described first substrate and described second substrate;
One hermetically-sealed construction, is located at the periphery of described first substrate and described second substrate, for being packaged between described first substrate and described second substrate by described macromolecule organic luminescent device.
In a kind of example embodiment of the present disclosure, by using mixing nanometer rete as the material in electric transmission portion, increase the electron mean free path of electronics in electric transmission portion, and then improve the electron transport ability in electric transmission portion, the cavity transmission ability of itself and macromolecule organic luminescent device is balanced, and then exciton is controlled in organic luminous layer, improve the current efficiency of macromolecule organic luminescent device.
Accompanying drawing explanation
Describe its example embodiment in detail by referring to accompanying drawing, above-mentioned and further feature of the present disclosure and advantage will become more obvious.
Fig. 1 is the structural representation of a kind of macromolecule organic luminescent device in prior art.
Fig. 2 is the structural representation of a kind of macromolecule organic luminescent device in disclosure example embodiment.
Fig. 3 is the structural representation mixing nanometer rete in Fig. 2.
Fig. 4 is the preparation flow schematic diagram of macromolecule organic luminescent device in Fig. 2.
Fig. 5 be mix in Fig. 2 nanometer rete preparation flow schematic diagram.
Embodiment
More fully example embodiment is described referring now to accompanying drawing.But example embodiment can be implemented in a variety of forms, and should not be understood to be limited to execution mode set forth herein; On the contrary, these execution modes are provided to make the disclosure comprehensively with complete, and the design of example embodiment will be conveyed to those skilled in the art all sidedly.Reference numeral identical in the drawings represents same or similar structure, thus will omit their detailed description.
In addition, described feature, structure or characteristic can be combined in one or more embodiment in any suitable manner.In the following description, provide many details thus provide fully understanding embodiment of the present disclosure.But, one of skill in the art will appreciate that and can put into practice technical scheme of the present disclosure and not have in described specific detail one or more, or other structure, material or method etc. can be adopted.In other cases, known features, method or operation is not shown specifically or describes to avoid fuzzy each side of the present disclosure.
A kind of organic luminescent device is provide firstly, especially a kind of macromolecule organic luminescent device in this example embodiment.According to the exit direction of light, macromolecule organic luminescent device is divided into bottom emitting type and top emission type.For bottom emitting type, shown in figure 2, this macromolecule organic luminescent device mainly comprises hole transport portion 1, organic luminous layer 2 and electric transmission portion 3.Wherein, organic luminous layer 2 has relative first surface and second (upper side in such as figure and downside), hole transport portion 1 is stacked at described organic luminous layer 2 downside, comprises the anode 10, hole injection layer 11 and the hole transmission layer 12 that are cascading.Electric transmission portion 3 is stacked at described organic luminous layer 2 upper side, and it comprises mixing nanometer rete 32 and negative electrode 30.Anode 10 can be made up of the material with high work function and light-transmissive, such as transparent conductive oxide material, such as ITO nesa coating.Negative electrode 30 can be made up of transparent conductive material, such as aluminium, calcium, the moon or magnadure nesa coating etc.
Be no matter the conduction system of narrow broadband or wide band, during its charge transtion (Hopping) process, intermolecular spacing is equivalent to electron mean free path.According to electron mobility u={ea
2/ K
bt}K
eT(wherein, e represents electron charge, and a represents intermolecular spacing, K
brepresent Boltzmann constant, T represents thermodynamic temperature, conductivity K
eTthe probability of electron transition in the representation unit time), can learn electronics freely average Cheng Youguan during size and the conduct charges of material own of electron mobility, electron mean free path is larger, and its mobility is larger, and electron mean free path is less, and its mobility is less.By using mixing nanometer rete 32 as the material in electric transmission portion 3 in this example embodiment, increase the electron mean free path of electronics in electric transmission portion 3, and then improve the electron transport ability in electric transmission portion 3, the cavity transmission ability of itself and macromolecule organic luminescent device is balanced, and then exciton is controlled in organic luminous layer 2, improve the current efficiency of macromolecule organic luminescent device.
A kind of implementation of above-mentioned mixing nanometer rete 32 is additionally provided in this example embodiment, shown in figure 3, described mixing nanometer rete 32 comprises: electron rich carrier 321 and transition metal oxide (below may referred to as TMO) nanometer particle film 322 or quasi-metal oxides nanometer particle film 322, described transition metal oxide nano particle film 322 or quasi-metal oxides nanometer particle film 322 are anchored on described electron rich carrier 321.For example, described electron rich carrier 321 can comprise the plane system film of the rich pi-electron such as Graphene (RGO) or carbon nano-tube (CNT), transition metal in described transition metal oxide and quasi-metal oxides or metalloid can be selected from IIIB, IVB, VB, VIB, VIIB, IB, IIB, IIIA, IVA, VA or VIA race, such as, described transition metal oxide can comprise TiO
2(mixing nanometer rete 32 energy level of formation is about 7.6ev) or ZnO (mixing nanometer rete 32 energy level of formation is about 7.6ev) etc., described quasi-metal oxides comprises Ge
2o
5(mixing nanometer rete 32 energy level of formation is about 7.2ev) or As
2o
5(mixing nanometer rete 32 energy level of formation is about 7.3ev) etc.In addition, those skilled in the art, it is easily understood that in other exemplary embodiments of the present disclosure, also may adopt other materials to realize the mixing nanometer rete 32 of above-mentioned functions, not to be limited in this example embodiment.
For TMO nanometer particle film 322 and RGO carrier, TMO nano particle has high specific area and electron mean free path, therefore higher electron transport ability can be had, electronics can be conducted fast, thus the electron mobility in electric transmission portion 3 can be improved, meanwhile, because RGO carrier 321 itself is the plane system film of rich pi-electron, its electron transport rate is especially good, therefore can promote the electron mobility in electric transmission portion 3 further.
In addition, owing to there is larger series resistance between TMO nano particle, when after the energising of macromolecule organic luminescent device, likely can form Joule heat (JouleHeat) in the interface of TMO nanometer particle film 322, and then badly influence the useful life of macromolecule organic luminescent device.In order to address this problem, in this example embodiment, TMO nanometer particle film 322 be formed with RGO carrier 321 and mixing nanometer rete 32, i.e. TMO-RGO mixing nano thin-film.Due to the unique morphology of TMO nanometer particle film 322 itself, TM-O key can be embedded into 2D-SP as anchor
2structure (SP
2the two-dimensional structure that the carbon atom of hydridization is formed with hexagonal cell shape ordered arrangement) RGO carrier 321 in form TM-O-C (transition metal-oxygen-carbon) key 322, the electron mean free path of electronics between TMO-RGO mixing nano thin-film can be increased on the one hand, the series resistance of TMO can be reduced on the other hand, while the electron mobility improving electric transmission portion 3, promote the useful life of macromolecule organic luminescent device.
Shown in figure 4, be macromolecule organic luminescent device preparation method flow chart in Fig. 2, it mainly comprises:
There is provided a first substrate 41, described first substrate 41 can comprise the underlay substrate of the rigidity such as glass, silicon chip, quartz, plastics and silicon chip or flexibility.
Above-mentioned first substrate 41 forms a hole transport portion 1, for providing holoe carrier.The step forming described hole transport portion 1 can comprise: the electrode being formed anode 10 by techniques such as evaporations on first substrate 41, such as ITO nesa coating etc.; Above-mentioned anode 10 is formed a hole injection layer 11, and wherein, hole injection layer 11 can comprise (3,4-rthylene dioxythiophene)-polystyrolsulfon acid etc.; And form a hole transmission layer 12 on above-mentioned hole injection layer 11, described hole transmission layer 12 can comprise Polyvinyl carbazole etc.
An organic luminous layer 2 is formed on described hole transport portion 1, described organic luminous layer 2 can comprise polyfluorene and derivative, Polyvinyl carbazole and poly-(2-(4-(3', 7'-dimethyl octyloxy benzene)-Isosorbide-5-Nitrae-phenylene ethylene) etc.
An above-mentioned electric transmission portion 3 is formed, for providing electronic carrier on described organic luminous layer 2.Described electric transmission portion 3 comprises mixing nanometer rete 32, described mixing nanometer rete 32 can comprise electron rich carrier 321, and transition metal oxide or quasi-metal oxides nanometer particle film 322, transition metal oxide or quasi-metal oxides nanometer particle film 322 are anchored to described electron rich carrier 321.
Above-mentioned mixing nanometer rete 32 can be prepared by solution processing mode in this example embodiment.Shown in figure 5, nanometer rete 32 is mixed to prepare TMO-RGO, first the organic solvents such as ethanol can be provided, and GO (intermediate in the process of preparation RGO) is dissolved in this organic solvent, secondly add TMO nano particle in organic solvent and stir and form TMO/GO colloid, then carry out UV (ultraviolet light) to the TMO/GO colloid obtained to irradiate, obtain TMO-RGO colloid, obtain TMO-RGO after finally TMO-RGO colloid being cleaned by cleaning fluid and mix nanometer rete 32.
After the material obtaining mixing nanometer rete 32, it is formed on described organic luminous layer 2 by spin coating proceeding or InkJet printing processes, and negative electrode 30 is formed on described mixing nanometer rete 32, negative electrode 30 can be made up of transparent conductive material, such as aluminium, calcium, the moon or magnadure nesa coating etc.This part with reference to related art, therefore can repeat no more herein.
Finally, the macromolecule organic luminescent device encapsulated is obtained by first substrate 41 and second substrate 42 and hermetically-sealed construction (not shown) etc.
In addition, for better understanding advantage of the present invention, in this example embodiment, also experimental verification has been carried out to the electron mobility of above-mentioned mixing nanometer rete 32.In following table 1, in experimental example 1 to experimental example 4, the test of electron mobility is all carry out in an organic light emitting device; Except electron transfer layer, other retes of the organic luminescent device in experimental example 1 to experimental example 4 are identical.The material of the electron transfer layer in experimental example 1 to experimental example 4 can be respectively the identical TiO of thickness
2-RGO mixes nano thin-film, ZnO-RGO mixing nano thin-film, Alq
3(three (oxine) aluminium) film and PEO (poly(ethylene oxide)) film.The experimental result obtained is as shown in Table 1 below:
Table 1:
| Experimental example | Electron mobility cm 2/V/S |
| Experimental example 1 | 4.5×10 -4 |
| Experimental example 2 | 3.7×10 -4 |
| Experimental example 3 | 1.4×10 -6 |
| Experimental example 4 | 10 -6 |
As can be seen from Table 1, no matter traditional electron transport layer materials is macromolecular material PEO or small molecule material Alq
3, the electron mobility magnitude of the two is all 10
-6cm
2/ V/S.The electron mobility magnitude of the electron transport layer materials in this example embodiment rises to 10
-4cm
2/v/S; Wherein, TiO
2-RGO mixes nano thin-film, the electron mobility of ZnO-RGO mixing nano thin-film is respectively 4.5 × 10
-4cm
2/ V/S and 3.7 × 10
-4cm
2/ V/S.The mixing nanometer rete illustrating in this example embodiment is compared conventional art and significantly can be promoted electron mobility, and then electron transport ability and cavity transmission ability in macromolecule organic luminescent device can be made to be balanced.
And, for better understanding advantage of the present invention, also to adopting the performance mixing the organic luminescent device of nano thin-film in this example embodiment to carry out experimental verification in this example embodiment.In following table 2, in the electric organic luminescent device in experimental example 5 to experimental example 8, except electron transfer layer, other retes are identical.The material of the electron transfer layer in experimental example 5 to experimental example 8 can be respectively the identical TiO of thickness
2-RGO mixes nano thin-film, ZnO-RGO mixing nano thin-film, Alq
3(three (oxine) aluminium) film and PEO (poly(ethylene oxide)) film.The experimental result obtained is as shown in Table 2 below:
Table 2:
| Experimental example | HOMO energy level | Lumo energy | Current efficiency10mA |
| Experimental example 5 | 7.6ev | 4.3ev | 20.12cd/A |
| Experimental example 6 | 7.6ev | 4.3ev | 18.56cd/A |
| Experimental example 7 | 5.7ev | 2.8ev | 5.18cd/A |
| Experimental example 8 | Do not survey | Do not survey | 4.96cd/A |
As can be seen from Table 2, compared to employing traditional material electron transfer layer (PEO or Alq
3) organic luminescent device, adopt electron transfer layer (TiO in this example embodiment
2-RGO mixes nano thin-film, ZnO-RGO mixing nano thin-film) the current efficiency of organic luminescent device risen to about 20cd/A by about 5cd/A, namely current efficiency has had obvious improvement.
Further, a kind of display floater is also provided in this example embodiment.This display floater comprises first substrate, second substrate, hermetically-sealed construction and above-mentioned macromolecule organic luminescent device.First substrate and second substrate are oppositely arranged, above-mentioned macromolecule organic luminescent device is arranged between described first substrate and described second substrate, the periphery of described first substrate and described second substrate is located at by hermetically-sealed construction, for being packaged between described first substrate and described second substrate by described macromolecule organic luminescent device.Because in this macromolecule organic luminescent device, electron transport ability and cavity transmission ability are balanced, and then exciton is controlled in organic luminous layer, improve the current efficiency of macromolecule organic luminescent device, therefore the display quality of this display floater also will improve accordingly.
The disclosure is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present disclosure.Must it is noted that the embodiment disclosed limit the scope of the present disclosure.On the contrary, not departing from the change and retouching done in spirit and scope of the present disclosure, scope of patent protection of the present disclosure is all belonged to.
Claims (13)
1. an organic luminescent device, is characterized in that, comprising:
Organic luminous layer, has relative first surface and second;
Hole transport portion, is stacked at described organic luminous layer first surface;
Electric transmission portion, is stacked at described organic luminous layer second, and described electric transmission portion comprises mixing nanometer rete.
2. organic luminescent device according to claim 1, is characterized in that, described mixing nanometer rete comprises:
Electron rich carrier, and
Transition metal oxide or quasi-metal oxides nanometer particle film, be anchored on described electron rich carrier.
3. organic luminescent device according to claim 2, is characterized in that, described electron rich carrier comprises rich pi-electron system film.
4. organic luminescent device according to claim 3, is characterized in that, described electron rich carrier comprises Graphene or carbon nano-tube.
5. organic luminescent device according to claim 4, is characterized in that, the metal in described transition metal oxide and quasi-metal oxides or metalloid are selected from IIIB, IVB, VB, VIB, VIIB, IB, IIB, IIIA, IVA, VA or VIA race.
6. organic luminescent device according to claim 5, is characterized in that, described transiting metal compound is TiO
2or ZnO.
7. organic luminescent device according to claim 5, is characterized in that, the transiting metal compound in described mixing nanometer rete and Graphene form thin layer by transition metal-oxygen-carbon bond grappling.
8. organic luminescent device according to claim 5, is characterized in that, described quasi-metal oxides comprises Ge
2o
5or As
2o
5.
9. the organic luminescent device according to claim 1-8 any one, is characterized in that, described organic luminescent device is macromolecule organic luminescent device.
10. an organic luminescent device preparation method, is characterized in that, comprising:
Form a hole transport portion, for providing holoe carrier;
An organic luminous layer is formed on described hole transport portion; And,
On described organic luminous layer, form an electric transmission portion, described electric transmission portion comprises mixing nanometer rete.
11. organic luminescent devices according to claim 10, is characterized in that, described mixing nanometer rete comprises:
One electron rich carrier, and
One transition metal oxide or quasi-metal oxides nanometer particle film, be anchored to described electron rich carrier.
12. organic luminescent device preparation methods according to claim 11, is characterized in that, the step that described formation one mixes nanometer rete comprises:
Described mixing nanometer rete is prepared by solution processing mode; And
The material of described mixing nanometer rete is formed on described organic luminous layer by spin coating proceeding or InkJet printing processes.
13. 1 kinds of organic electroluminescence display panels, is characterized in that, comprising:
One first substrate;
One second substrate, is oppositely arranged with described first substrate;
One organic luminescent device according to claim 1-9 any one, is arranged between described first substrate and described second substrate;
One hermetically-sealed construction, is located at the periphery of described first substrate and described second substrate, for being packaged between described first substrate and described second substrate by described organic luminescent device.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016101378A1 (en) | 2015-09-11 | 2017-03-16 | Shanghai Tianma AM-OLED Co., Ltd. | Display panel, organic light emitting diode and method of making the same |
| CN109935703A (en) * | 2017-12-15 | 2019-06-25 | Tcl集团股份有限公司 | Composite membrane and its preparation method and application |
| WO2023160002A1 (en) * | 2022-02-22 | 2023-08-31 | Tcl科技集团股份有限公司 | Light-emitting device and preparation method therefor, and display apparatus |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104795424B (en) * | 2015-03-26 | 2017-11-10 | 京东方科技集团股份有限公司 | Flexible substrate substrate and display base plate and preparation method thereof, display device |
| US10192932B2 (en) | 2016-02-02 | 2019-01-29 | Apple Inc. | Quantum dot LED and OLED integration for high efficiency displays |
| US11038136B2 (en) | 2018-09-07 | 2021-06-15 | Samsung Electronics Co., Ltd. | Electroluminescent device, and display device comprising thereof |
| KR20200028657A (en) * | 2018-09-07 | 2020-03-17 | 삼성전자주식회사 | Electroluminescent device, and display device comprising thereof |
| WO2020129134A1 (en) * | 2018-12-17 | 2020-06-25 | シャープ株式会社 | Electroluminescence element and display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101882665A (en) * | 2010-06-24 | 2010-11-10 | 电子科技大学 | Organic photoelectric device and preparation method thereof |
| CN103078064A (en) * | 2013-01-30 | 2013-05-01 | 四川虹视显示技术有限公司 | Organic light-emitting diode (OLED) panel packaging structure and packaging method |
| US20130240847A1 (en) * | 2010-05-21 | 2013-09-19 | Solarno, Inc. | Monolithic parallel multijunction oled with independent tunable color emission |
| CN103548171A (en) * | 2011-05-20 | 2014-01-29 | 国立大学法人山形大学 | Organic electronic device and method for manufacturing same |
| CN104183830A (en) * | 2014-08-19 | 2014-12-03 | 中南大学 | Preparation method of two-dimensional inorganic layered compound/graphene composite material |
| CN104854720A (en) * | 2012-08-01 | 2015-08-19 | 密歇根大学董事会 | Organic optoelectronics with electrode buffer layers |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10270171A (en) * | 1997-01-27 | 1998-10-09 | Junji Kido | Organic electroluminescent element |
| JP4514841B2 (en) * | 1998-02-17 | 2010-07-28 | 淳二 城戸 | Organic electroluminescent device |
| US6597012B2 (en) * | 2001-05-02 | 2003-07-22 | Junji Kido | Organic electroluminescent device |
| JP4010845B2 (en) * | 2002-03-28 | 2007-11-21 | 富士フイルム株式会社 | Light emitting element |
| EP1666562B1 (en) | 2004-11-11 | 2018-03-07 | Samsung Electronics Co., Ltd. | Interfused nanocrystals and method of preparing the same |
| US7564067B2 (en) * | 2007-03-29 | 2009-07-21 | Eastman Kodak Company | Device having spacers |
| KR20090050369A (en) | 2007-11-15 | 2009-05-20 | 삼성모바일디스플레이주식회사 | Organic luminescence display device |
| KR101154347B1 (en) * | 2009-08-24 | 2012-06-13 | 한양대학교 산학협력단 | Photo detector utilizing graphene film and nano particles |
| KR101173105B1 (en) | 2010-05-24 | 2012-08-14 | 한국과학기술원 | Organic light emitting element |
| CN102185113A (en) | 2011-04-20 | 2011-09-14 | 陕西科技大学 | Organic light emitting diode (OLED) device |
| KR20120120514A (en) * | 2011-04-22 | 2012-11-02 | 한국과학기술원 | Control method for device using doped carbon-nanostructure and device comprising doped carbon-nanostructure |
| CN103000813B (en) * | 2012-10-23 | 2015-09-09 | 京东方科技集团股份有限公司 | Light-emitting diode and preparation method thereof |
| US20150280227A1 (en) * | 2014-03-27 | 2015-10-01 | Imra America, Inc. | Predoping method for an electrode active material in an energy storage device, and energy storage devices |
| CN105070848B (en) | 2015-09-11 | 2017-06-16 | 上海天马有机发光显示技术有限公司 | Display panel, organic luminescent device and preparation method thereof |
-
2015
- 2015-09-11 CN CN201510575611.3A patent/CN105070848B/en active Active
-
2016
- 2016-01-07 US US14/990,335 patent/US10243142B2/en active Active
- 2016-01-26 DE DE102016101378.1A patent/DE102016101378B4/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130240847A1 (en) * | 2010-05-21 | 2013-09-19 | Solarno, Inc. | Monolithic parallel multijunction oled with independent tunable color emission |
| CN101882665A (en) * | 2010-06-24 | 2010-11-10 | 电子科技大学 | Organic photoelectric device and preparation method thereof |
| CN103548171A (en) * | 2011-05-20 | 2014-01-29 | 国立大学法人山形大学 | Organic electronic device and method for manufacturing same |
| CN104854720A (en) * | 2012-08-01 | 2015-08-19 | 密歇根大学董事会 | Organic optoelectronics with electrode buffer layers |
| CN103078064A (en) * | 2013-01-30 | 2013-05-01 | 四川虹视显示技术有限公司 | Organic light-emitting diode (OLED) panel packaging structure and packaging method |
| CN104183830A (en) * | 2014-08-19 | 2014-12-03 | 中南大学 | Preparation method of two-dimensional inorganic layered compound/graphene composite material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102016101378A1 (en) | 2015-09-11 | 2017-03-16 | Shanghai Tianma AM-OLED Co., Ltd. | Display panel, organic light emitting diode and method of making the same |
| CN109935703A (en) * | 2017-12-15 | 2019-06-25 | Tcl集团股份有限公司 | Composite membrane and its preparation method and application |
| CN109935703B (en) * | 2017-12-15 | 2020-06-16 | Tcl科技集团股份有限公司 | Composite membrane and preparation method and application thereof |
| WO2023160002A1 (en) * | 2022-02-22 | 2023-08-31 | Tcl科技集团股份有限公司 | Light-emitting device and preparation method therefor, and display apparatus |
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| US10243142B2 (en) | 2019-03-26 |
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| DE102016101378B4 (en) | 2021-08-12 |
| DE102016101378A1 (en) | 2017-03-16 |
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